UNT Libraries - 254 Matching Results

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open access

Adenylate Energy Charge Determinations of Soil Bacteria Grown in Soil Extract Medium

Description: The adenylate energy charge values of twenty bacteria isolated from soil and cultured in a medium consisting of soil and distilled water were determined by the luciferin-luciferase bioluminescense method. The purpose of this study was to examine the growth and energy charge values of these organisms in soil extract medium, and to determine what effect the addition of glucose has on their energy charge values. Three of the organisms employed in this study showed energy charge values similar to t… more
Date: August 1988
Creator: Rodriguez, Luis A. (Luis Antonio)
open access

Aesthetic Justifications for Music Education: a Theoretical Examination of Their Usefulness

Description: Justifications for music education have been studied only by examining historical trends in statements of aesthetic versus utilitarian values, and not from the perspective of evaluating the justifications' usefulness. A number of prominent writers in the music education field, while supporting aesthetic values as important for music education, have expressed doubts about the effectiveness of aesthetic justifications when used for convincing outsiders of the importance of music in the public sch… more
Date: December 1988
Creator: Paul, Stephen John
open access

Aggression and Social Interest in Behavior Disordered Students

Description: This study investigated whether behavior disordered children would decrease aggressive behavior if their social interest were developed. Three hypotheses that were tested predicted that there would be a significant difference between the control group and the experimental group on adjusted mean scores on aggressive behavior on post test scores. The measuring instruments used were the Child Behavior Checklist Parent Report Form, the Child Behavior Checklist Teacher Report Form, and the Child Beh… more
Date: May 1988
Creator: Brown, Deborah D. (Deborah Dairy)
open access

Alaskan Native Social Integration and Academic Achievement

Description: The variables communication skills, state anxiety, communication apprehension, and level of integration are studied in relation to the assimilation of Alaskan Natives into a western-culture university. Specifically, the differences in communication skills between the two cultures and their effects on course grades are addressed. Results of the statistical analyses (ANOVA, MANOVA, discriminant function analysis, multiple regression) were not significant, most likely due to the small Alaskan Nati… more
Date: December 1988
Creator: Strohmaier, Mahla
open access

Alternate Substrates and Isotope Effects as a Probe of the Malic Enzyme Reaction

Description: Dissociation constants for alternate dirmcleotide substrates and competitive inhibitors suggest that the dinucleotide binding site of the Ascaris suum NAD-malic enzyme is hydrophobic in the vicinity of the nicotinamide ring. Changes in the divalent metal ion activator from Mg^2+ to Mn^2+ or Cd^2+ results in a decrease in the dinucleotide affinity and an increase in the affinity for malate. Primary deuterium and 13-C isotope effects obtained with the different metal ions suggest either a change … more
Date: August 1988
Creator: Gavva, Sandhya Reddy
open access

Alternative Social Security Taxing Schemes: an Analysis of Vertical and Horizontal Equity in the Federal Tax System

Description: The objectives of this study were twofold. One objective was to analyze the effects of growth in the social security tax, when combined with recent changes in U.S. income tax law, on the distribution of the combined income and social security tax burden during the 1980s. The second objective was to estimate the effects of certain proposals for social security tax reform upon that distribution. The above analyses were performed using simulation techniques applied to the 1984 IRS Individual Tax M… more
Date: December 1988
Creator: Ricketts, Robert C. (Robert Carlton)
open access

The American University of Beirut and Its Educational Activities in Lebanon, 1920-1967

Description: The purpose of this study was to trace the historical development of the American University of Beirut and its educational contributions in Lebanon and the Middle East from 1920 to 1967. Through their activities in the Levant in the early nineteenth century, the American missionaries virtually laid the foundations of the Syrian Protestant College, later known as the American University of Beirut. Though religion was the cornerstone in the founding of the University, under the pressure of the lo… more
Date: May 1988
Creator: Sayah, Edward
open access

An Analysis of Achievement Test Scores to Determine the Effectiveness of a Remedial English Program in a Small University

Description: Freshmen at Sul Ross State University are required to take tests which are used for placement purposes. One of the tests given is the Nelson-Denny Reading Test which measures comprehension, vocabulary, and reading rate. The scores are used with American College Test or Standard Achievement Test scores to place students in either remedial or regular freshman English. Remedial students, who score below the tenth-grade competency level, are placed in English 1300. Regular students are placed in En… more
Date: August 1988
Creator: Grimm, J. Ed (Joseph Ed)
open access

Analysis of Acid Gas Emissions in the Combustion of the Binder Enhanced d-RDF by Ion Chromatography

Description: Waste-to-energy has become an attractive alternative to landfills. One concern in this development is the release of pollutants in the combustion process. The binder enhanced d-RDF pellets satisfy the requirements of environmental acceptance, chemical/biological stability, and being storeable. The acid gas emissions of combusting d-RDF pellets with sulfur-rich coal were analyzed by ion chromatography and decreased when d-RDF pellets were utilized. The results imply the possibility of using d-RD… more
Date: August 1988
Creator: Jen, Jen-Fon
open access

An Analysis of Enrollment Patterns in Required General Education Courses and the Related Success, as Measured by Grade Point Average, of Technical-Occupational Students in a Multi-Campus Urban Community College

Description: This study investigated the following with regard to technical-occupational students in a multi-campus urban community college: The enrollment patterns in required general education courses at specific intervals of course work; the relation between successful completion of certain required general education courses (English and mathematics) and academic success as measured by grade point average; and the profiles or basic characteristics (age, GPA, sex, and high school graduation status) of (a)… more
Date: December 1988
Creator: Hines, Linda Kay, 1942-
open access

The Analysis of Patient Status Following Substance Abuse Treatment and Utilization of Medical Care

Description: Subjects were 2,950 patients who had previously received inpatient treatment for substance abuse at 40 treatment centers in 13 states and were followed up by the Chemical Abuse/Addiction Treatment Outcome Registry (CATOR) via telephone during the 2 years immediately following their treatment. All subjects were contacted every 6 months and asked a series of questions regarding their relapse status, medical utilization, illnesses, injuries, and arrests. Patient status was based on 3 categories: (… more
Date: December 1988
Creator: Jones, French Allan
open access

An Analysis of Smoothing of Proved Oil and Gas Reserve Quantities and an Analysis of Bias and Variability in Revisions of Previous Estimates of Proved Oil and Gas Reserve Quantities

Description: The purpose of this study is to determine whether oil and gas producing companies smooth their ending reserve quantities. Smoothing is defined as a reduction in variance in the trend of ending reserve quantities over time compared to the trend of ending reserve quantities less the hypothesized smoothing variable over time. This study focuses on two variables that are most susceptible to manipulation—revisions of previous estimates and additions. This study also examines whether revisions are po… more
Date: August 1988
Creator: Campbell, Alan D.
open access

An Analysis of the Elderhostel Experience at One University

Description: This ethnographic, descriptive case study is concerned with an analysis of the Elderhostel experience at one specific university. Questionnaires, evaluation documents, observations, phototographs, and interviews were used in this study to describe the 1988 Elderhostel experience at North Texas State University. Thirty-three persons were initially asked to participate in this study. Twenty-nine agreed and actually completed the questionnaires, and 26 completed the program evaluation. The study i… more
Date: August 1988
Creator: Patterson, Mary Frances, 1948-
open access

An Analysis of the Participant Selection Process Under the Comprehensive Employment and Training Act: Texas and Louisiana

Description: Federal guidelines required prime sponsors under the Comprehensive Employment and Training Act, or CETA, to serve the "significant segments" of the eligible population. This study analyzes whether prime sponsors in Texas and Louisiana correctly identified and served those segments. This study finds that eligible ethnic groups were properly identified and were served equitably; age and gender distinctions, however, were inadequately observed in the providing of services.
Date: May 1988
Creator: Drake, William D. (William Daniel), 1950-
open access

An Analysis of the Perceptions of Physics Teaching Effectiveness as Viewed by Students and Physics Instructors in Universities in Thailand

Description: The purpose of this study was to investigate the perceptions of the physics instructors, major-physics students, and nonmajor-physics students regarding actual teaching performance and effective teaching performance. The sample consisted of a total of 56 physics instructors, 120 major-physics students, and 120 nonmajor-physics students at eight public universities in Thailand. A total of 53 physics instructors or 94.64 percent, 101 major-physics students or 84.17 percent, and 107 nonmajor-physi… more
Date: August 1988
Creator: Chayan Boonyaraksa
open access

The Angry Charmer

Description: This screenplay, dealing with the theme of anger, is divided into three acts: setup, confrontation and resolution, respectively. Beginning in medias res, flashbacks are employed for expositions of the two main characters, Connor Tracy, alias the Angry Charmer, and Howard Goldberg. Act I opens with Connor at the wheel of a van, driving wildly, Howard accompanying. The setup is established. Act IlI returns to the careening van and then flashbacks to the college meeting of Connor and Howard. By t… more
Date: May 1988
Creator: Wall, Jeffrey R. (Jeffrey Robert)
open access

Applications of Graph Theory and Topology to Combinatorial Designs

Description: This dissertation is concerned with the existence and the isomorphism of designs. The first part studies the existence of designs. Chapter I shows how to obtain a design from a difference family. Chapters II to IV study the existence of an affine 3-(p^m,4,λ) design where the v-set is the Galois field GF(p^m). Associated to each prime p, this paper constructs a graph. If the graph has a 1-factor, then a difference family and hence an affine design exists. The question arises of how to determine … more
Date: December 1988
Creator: Somporn Sutinuntopas
open access

Appraiser Accuracy Utilizing the Texas Teacher Appraisal System: A Demographic Analysis

Description: The purpose of this study was to determine if there are personal and demographic characteristics which can predict the most accurate teacher appraisers. The demographics were limited to the following: campus-level job assignment, employing district size, sex, race, number of years of experience as an administrator, previous level of teaching experience, and curriculum area taught by the appraiser. The 622 subjects were school administrators trained to utilize the Texas Teacher Appraisal System.… more
Date: December 1988
Creator: Griggs, Bob Evans
open access

Arbitrage Pricing Theory and the Capital Asset Pricing Model: Evidence from the Eurodollar Bond Market

Description: Monthly returns on twenty-seven Eurobonds from July 1982 to June 1986 were examined. There were no consistent differences in returns based on the country in which a firm is located. There were consistent differences due to industry classification, with energy-related firms exhibiting higher average returns and variances. Excess returns were calculated using the capital asset pricing model and arbitrage pricing theory. The results from calculation of mean average deviation, root mean square, and… more
Date: May 1988
Creator: Jordan-Wagner, James M. (James Michael)
open access

Aspects of Fathead Minnow Reproductive Behavior

Description: Following a study of normal reproductive behavior of fathead minnows, Pimephales promelas, experiments were conducted to determine the stability/variability of behavior by sexually mature, territorial males under a variety of manipulated conditions. Collectively, these experiments indicate that although the individual behaviors of fathead minnows appear to be quite variable, the overall process, reproductive behavior, is stable.
Date: May 1988
Creator: Pyron, Mark
open access

Assessment of Computer Uses in Texas University and College Foodservice

Description: The purposes of this study were. to identify current uses of computers by university foodservice operations and to determine if there.are any differences in computer use among university foodservice operations. The twelve university foodservice directors who responded to the research questionnaire varied significantly in their computer usage and computer characteristics. Institutions serving more than 1,000 meals per day represented 91% of the sample using computers. Chi Square analysis found a… more
Date: August 1988
Creator: Sahba, Afsaneh
open access

An Assessment of Occupational Investigation Courses in Texas in Relationship to Mainstreamed Handicapped Students Served

Description: The purpose of the study was to determine if occupational investigation teachers and vocational administrators held similar or differing attitudes toward the occupational investigation courses in relation to the mainstreamed handicapped students they served. The following conclusions were warranted from the findings of the analyses of the data. Findings derived from multiple T tests indicate that occupational investigation teachers perceive all survey item statements concerning Admission, Revie… more
Date: May 1988
Creator: Ragland, George B., 1953-
open access

The Association between Class Size, Achievement, and Opinions of University Students in First-Semester Calculus

Description: The purposes of the study were: to determine the relationship between class size and academic achievement among university students in first-semester calculus classes, and to compare opinions about the instructor, course, and classroom learning environment of university students in small first-semester calculus classes with those in large classes. The sample consisted of 225 university students distributed among two large and two small sections of first-semester calculus classes taught at the U… more
Date: May 1988
Creator: Warren, Eddie N. (Eddie Nelson)
open access

At Once in All its Parts: Narrative Unity in the Gospel of Mark

Description: The prevailing analyses of the structure of the Gospel of Mark represent modifications of the form-critical approach and reflect its tendency to regard the Gospel not as a unified narrative but as an anthology of sayings and acts of Jesus which were selected and more or less adapted to reflect the early Church's theological understanding of Christ. However, a narrative-critical reading of the Gospel reveals that the opening proclamation, the Transfiguration, and the concluding proclamation prov… more
Date: December 1988
Creator: Kevil, Timothy J. (Timothy Jack)
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